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George H., Hyundai Technician

Category: Hyundai

Satisfied Customers: 2033

Experience: Hyundai Gold certified, ASE Master tech 15+ years

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2010 sonata slowed down, engine light came on. I had it

Customer Question

2010 sonata slowed down, engine light came on. I had it towed to dealer. They say it has no codes to read, needs to be driven.JA: Have you scanned the code? Have you tried to reset it?Customer: 2010 Sonata slowed down, engine light came on. I had it towed to dealer. They say there are no codes to read, it has to be driven. How can they get the codes without ruining the engine?JA: Are you hoping to fix this yourself? What have you tried so far?Customer: No, it is at the dealership.JA: Anything else you think the mechanic should know?Customer: it was fine for the first 30 miles, then just lost Rebs and engine light came on. The only other trouble was a hesitation it had several times. I took it to the dealer and they said they fixed it, but it still did it once in a while.

If the check engine light came on then the system set and stored a fault code. The codes can be retrieved with out the engine running with just the key on . If you still having the problem, stop by your local auto parts store such as Auto Zone and have them run a scan on it which they will do at no charge and see if you can get me the fault code and post back with it and I will see if I can help you get this resolved.

They need to get the fault codes to reset and they should have set the first time the light came on. As long as the check engine light is not flashing and the engine runs it can be driven to get the codes to reset.